Insulating base-block for electric equipment.



PATENTED EEE. z8, 1905.

l M. CUETT. INSULATINC EASE BLOCK ECE ELECTRIC EQUIPMENT.

APPLICATION FILED .TUNE13.1904.

WZZWHSSQS UNITED STATES Patented February 28, 19055 PATENT OFFICE.

MONROE GUETT, OF HARTFORD, CONNECTICUT, ASSIGNOR lO HART @a HEGEMAN MANUFACTURING COMPANY, OF HARTFORD, CONNECTI- CUT, A CORPORATION OF CONNECTICUT.

INSULATING BASE-BLOCK FOR ELECTRIC EQUIPMENT.

, SPECIFICATION forming part of Letters Patent No. 783,430, dated February 28, 1905.

Application filed June 13, 1904:. Serial NOI 2l2|32l .T0 @ZZ 1071/0711/ it nte/y concern:

Be it known that I, MONROE GUETT, a citi- Zen ot' the United States of America, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Insulating Base-Blocks for Electric Equipment, of which the following is a specification.

My invention relates to bases made of insulating material on which fuses, switches, Sac., are mounted. It is usual to channel these base-blocks adjacent to the equipment which they carry to receive the main wires of the circuit with which connection is to be made. When it is desired to take two branches otf of .a three-wire circuit at the same point, as is very often the case, a special form oi' double- `fuse block having three channels and a set of electric equipment on each side of the channels has been used, these channels being' provided for the positive, neutral, and negative main wires of the system. A It will thus be seen that on the part oi' the manufacturer it was necessary to have tools, patterns, Sac., to manufacture two separate and distinct styles oi' basesone for use when only a single branch was to be taken ott and the other for use when two branches were to be taken o or' a circuit at the same point, and on the part oi' the user it was necessary for him to keep a stock of each style of bases.

One object of my invention is to provide a base-block which may be used as a singlebranch block or in connection with another exactly like itmay be used for a double-branch block, the single-branch block having two channels and when two of them are arranged with proper relation to each other there shall be three channels only, as in the present construction of double-branch blocks.

. In the embodiment of the invention illustrated rotary snap -switches are shown as mounted on the bases.

In the drawings, Figure l is a perspective view of a base-block embodying my invention. Fig. 2 is a plan view illustrating the manner in which the blocks are united when used as a two-branch block.

Referring' to the drawings, Ais the base on which, as illustrated, there is mounted a switch a. The base is channeled, as at d, and has a projection a, which is also channeled, as at c. Each of the channels is provided with a clamping device a* in the nature ot' a binding-post to take the current ofi' the wires, these clamping devices being connected at the rear of the block with the switch-contacts. It will be noted that this projection is less in width than the block and that the channel is formed entirely in the projection. The block, as shown in Fig. l, is of the proper 'form for use when it is desired to take a single branch from a circuit. If a three-wire circuit be in use and it is desired to take ott1 two separate branches at the same point, a second base B, identical with the base A, is fitted to the block A, so that the projection a2 will interlock with the projection be, bringing the channels c3 L into alinement with each other, so that the two blocks so arranged, as shown in Fig. l, may be considered as a unitary structure having three channelsf-one for the positive, the central for the neutral, and the other for the negative wires. As has been before stated, the channels in the projections are provided with clamping-screws, which are connected with the switch-contacts.

The advantages of a base-block made as Aabove described will be apparent both to the manufacturer and the user.

I claim as my invention- I. Theherein-described base-block comprising' the base-block proper, having a channel Vformed in its face, a projection from said base having' a channel formed wholly within it, and clamping' devices in said channels.

2. The herein-described base-block of insulating material adapted for the support oi' electric equipment comprising the base-block proper having a channel formed across its face, a projection Vfrom but or' less width than said base, said projection having a channel formed wholly within it, and clamping devices in said channels.

3. A base-block made up ot' two similar members each of which has a channel across its face and :L projection having a channel formed wholly within it, and chunping' devices in said channel; whereby, when said parts are arranged together in reversed positions, said projections interlock and the channels in said projections are in alinernent, substantially as described.

In testimony whereof I niiix lny signature in presence of two witnesses.

M(,)NhOE ('jrUETl.

\Vitnesses: Y

H. E. HART, D. l. KREIMENDMIL. 

